A preliminary study of base on micro-blood flow measurement and analysis based on the operation of the application of intelligent air conditioning systems

• Main Authors: Su-Hung Chen, 陳束弘
• Other Authors: Hsin Hsiu
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/46838556204378527215

碩士 === 元智大學 === 電機工程學系 === 98 === In modern days, people spend most of their time within indoor environment, and as the result, the demand for indoor comfortableness is increasing. Very often, a HVAC system is used to reach the demand, and hence the percentage of adoption is rising. However, the current HVAC system can not guarantee the comfortableness；as the situations of warm or cold happened, and users have to modify the settings of HVAC systems accordingly. This research is to address this situation, and aims at constructing a platform both deliver both human comfort and energy conservation. The platform is capable of determine the comfort of the indoor room space based on the data of microcirculation blood flow of the personnel and the optimized operation of air conditioning system can be modified afterwards. The best range for comfort and effective temperature curve was 22 degrees to 23.5 degrees, which was defined by the U.S. Association of Refrigeration and Air Conditioning ANSI / ASHREA Standard 55-2004, is formulated as the best comfortableness curve in this study. Experimental work related to human microcirculation was carried out to analyze the average blood flow in order to establish the relationship between the ambient temperature and the average blood flow. The present findings can aid the development of a HVAC control platform for room comfortableness, which is capable of detecting the average blood flow of humans to determine the temperature setting of this space. This platform will modify the operation level to rise the room space temperature if a human body is changed into the cold state, and vise versa. In conclusion, the present study therefore can help to achieve human comfort and energy conservation purposes. This paper presents the preliminary study of micro-blood flow measurement and analysis and intelligent air conditioning system control, and an indoor comfort platform is built based on this study. It was found that the status of comfort referring to the micro-blood circulation is directly influenced by the indoor temperature. Therefore, a too high or too low setting temperature of air conditioning system can cause uncomfortable and also wastes energy. Further studies to discover the optimized relationship between human comfort and energy can be carried out for the improvement of energy efficiency and indoor space quality.